Multi-frequency and multi-mode combined antenna

Abstract

The invention discloses a multi-frequency and multi-mode combined antenna. The antenna comprises an antenna body, a protective outer cover, a mounting block, a screw, a connecting wire and a wire hole. A protective outer cover is arranged outside the antenna body; a top limiting plate is arranged at the top end of the protective outer cover; a supporting frame is welded to the edge of the lower end face of the top limiting plate. Meanwhile, the lower end of the supporting frame is welded to the edge of the upper end face of a bottom limiting plate, the bottom limiting plate is fixedly connected with a threaded hole in an installation base on the inner side of the bottom limiting plate through the screw, and the mounting block is welded to the outer side of the bottom limiting plate. According to the multi-frequency multi-mode combined antenna, the structure of an existing multi-frequency and multi-mode combined antenna is improved; damage to the antenna can be reduced, dislocation andmovement of the multiple antennas can be reduced by limiting the two ends of the antenna, fixed arrangement of the multiple antennas is guaranteed, and signals of different frequency bands are transmitted through a first auxiliary antenna outer frame, a second auxiliary antenna outer frame and a main antenna.

Description

technical field [0001] The invention relates to the technical field of communications, in particular to a multi-frequency and multi-mode combined antenna. Background technique [0002] Multi-frequency multi-mode combination antenna is a commonly used antenna in the field of communication. It can combine antennas of different frequency bands to realize the transmission and reception of multi-band signals. It is widely used in various communication equipment, such as comparison Document application number: CN201920645572.3, authorization announcement date: 20191115 A multi-frequency multi-mode combined antenna, which realizes the isolation between the second antenna and the third antenna through the difference in the direction of rotation of the helical structure and the spacing between the antennas. A short-circuit ring is added to isolate the second antenna from the first antenna, and to improve the radiation characteristics of the first antenna. The multi-frequency multi-mo...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a multi-frequency multi-mode combined antenna to solve the existing multi-frequency multi-mode combined antenna on the market proposed by the above-mentioned background technology. The installation space between two antennas, however, there is no corresponding protective structure on the outside. During installation and maintenance, it is easy to cause collision damage to its antennas, which is not conducive to the protection of multiple antennas. During installation, the second antenna It is not at the same height as the top of the third antenna, and there is no corresponding fixed structure for the top of the second antenna and the third antenna, which will easily cause dislocation and movement of the top of the second antenna and the third antenna, which is not conducive to the second antenna and the third antenna. Issues with third antenna stabilization settings

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